The structural, mechanical and magnetic properties of Fe-Si 6.5 wt% rapidly solidified alloys have been investigated following recrystallization annealing and different rates of cooling through the B2 + DO3 ordering region (1 ≤ Ṫ ≥ 1500°Cmin-1). A transition from ductile to brittle behavior is observed for T < ∼ 1000°Cmin-1, chiefly due to B2 ordering and the associated formation of superlattice dislocations, having reduced glide and cross-slip capability. The magnetic behavior appears, however, to be weakly dependent on Ṫ, with the energy losses minimized for average grain size around 100-150 μm.
Magnetic and mechanical properties of rapidly solidified Fe-Si 6.5 wt% alloys and their interpretation
BARICCO, Marcello;
1996-01-01
Abstract
The structural, mechanical and magnetic properties of Fe-Si 6.5 wt% rapidly solidified alloys have been investigated following recrystallization annealing and different rates of cooling through the B2 + DO3 ordering region (1 ≤ Ṫ ≥ 1500°Cmin-1). A transition from ductile to brittle behavior is observed for T < ∼ 1000°Cmin-1, chiefly due to B2 ordering and the associated formation of superlattice dislocations, having reduced glide and cross-slip capability. The magnetic behavior appears, however, to be weakly dependent on Ṫ, with the energy losses minimized for average grain size around 100-150 μm.
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